Device eob pttmping- oil from a well



Jan. 17, 1933.

P. G. SHERRY DEVICE FOR PUMPING OIL FROM A WELL Original Filed Feb. 8, 1950 2 Sheets-'Sheet l 40 smania Jan. 17, 1933. P. G. sHERRY DEVICE FOR PUMPING OIL FROM A WELL 2 Sheets-Sheet Original Filed Feb. 8, 19:50

i Reissuecl Jan. 17, 1933 Re, 18,711A

UNirEosrArss PATENT OFFICE 7 min-:M frm-rma 8....

PHILLIP G. SHERRY, OF OKLAHOMA CITY, OKLAHOMA', AS'SIGII'OR, BY DIRECT ANI)l MESNE ASSIGNMENTS, TO P. OBRIEN, OF SHREVEPORT, IFZIOUIVSIAlTA` DEVICEA Fon PUMPING OIL FROM 'A WELL Original No. 1,835,437, dated `December 8, 1931, Serial No. 426,889, filed February 8, 1930. Application for reissue filed August 3, 193:?. Serial No. 627,384. v

This invention relates to a device for fore ing oil out of an oil well, and the primary object lof the invention is to provide a device of this character embodying'an elongated.`

tubular casingadapted to extend downward- Y ly beyond vthe conventional oil well casing7 and having its lower end at the bottom of the oil well together with aplurality of interconnected tubings disposed end'to end and extending through the tubular casing and a pair of pistons controlled from a single string operable within the lower section of the string of interconnected tube sections, which pistons are to be acted upon by pressure for seating the pistons on a valve seat and allow'- ing the further application of pressure to force upwardly the column of oil which has previously risen in the casing and discharge the same from the well.

A further object is to provide an oil well comprising a mainr casing, an auxiliary casing axially disposed in the main casing 1n spaced relation thereto, a normally open Valve l in the lower end of the auxiliary casing and controlling ports of communication between the chambers of the casings and means Whereby when pressure Vis forced downwardly through the auxiliary casing the valve will be seated and fluid lifted from the casings.

A further object is to provide a fluid lifting Well device7 into the lowerend of which fluid naturally rises, said well. comprising main'and auxiliary casings into'which the fluid rises,a vertically movable valve in thcv auxiliary casing and normally out of engagement with the valve seat, ports of communication between the chambers of the casings and means whereby when pressure is forced through the auxiliary casing the piston will bc moved to closed position and the further application of pressure will lift the column of fluid in the casings, to aV point of discharge. Also to provide means whereby the lifted column of fluid will pass inwardly to avdischarge pipe of smaller diameter than the casing, thereby reducing the frictional surface exposed to the upwardly movable column of fluid to a minimum.

to provide a device of this nature which is simple in construction, consists of but comparatively few parts, can be readilyand easily assembled, expeditiously inserted within a well, not liable to easily get out of working order, and otherwise well adaptedv for the purpose designed. v

Other objects and advantages of the invention will become apparent during a study of the following description. taken in conY l' nection with the accompanying drawings wherein: Y

Figure l is a longitudinal sectional viewv taken through the device. i y

Figure la is a longitudinal sectional view taken through the device at the upper end thereof; v f

Figure 1b is a continuation of Figure la and further is a longitudinal sectional viewA taken through the lower end of the device.

Figures 2 andv 3 are horizontal cross sec-` tional views taken substantially on line 2--2 cf Figure 1b and line 3-3 F igurev la respectively.

Figure 4 is an elevation view of the piston and piston rod therefor.

Nith reference more in detail to the drawings. it will be seen that my inventioncom-` prehends the provision of an outer elongated f A collar or coupling 6 at its upper end is i provided internally with right hand threads 7 for threaded engagement withthe'lower complementary threaded end of the casing 5a said collar section at its lower end being provided with internal le'ft hand lthreads 8,

and in said lower end has' threaded a boxing or annular member 9v as shownto advantage in Figure lo. l

The boxing or annular member 9 has an internally threadedtapered openingl 10, within which is threaded a tapered plug 11,

' upper end as apparent, and

l which plug `11 at its upper end is provided with an externally threaded tubular extension 12, having a vertical bore 13 extending therethrough and through the plug 11. The upper end of thevtubular extension 12 is beveled inwardly toprovide a valve seat 14 for a purpose to be hereinafter made mani? fest.

' i `The tubular extension 12` vextends into and is threadedly engaged with thel internally threaded lower endof a pipe section or Work?` The pipe section or working` ing cylinder a. cylinder@l is of suitablelength open at its extends upwardly through the casing 5. K

A pipe section b is complemental to the pipe section a isarranged in the casing 5 in longitudinal ali'nementy with said section a. A sleeve or coupling 15 has the lower end portion thereof internally ythreaded for* engagement with the Vexternalthreads on the upper vend of the pipe section a as at 16;

At'its upper end the coupling v15 is internallythreaded for a threaded' connection with the rexternal threads on the lower end of the complemental pipe section b-as at 17, and itis to be noted,l the adjacent ends of the section a and b are disposed in spaced relationand have located therebetween a disk 18 having radially extending series of perorations 19 Jformed therein.

As showntofadvantage in Figure vr1a,`the complemental pipe section b at its upper end is also externally threaded for engagement with the internally threaded tubular portion 2() of a coupling designated generally by the f reference character 21.-

The coupling 21 also'embodies an enlarged yinternally threaded upper cylindrical portion 22 forfthreaded engagement with the externally threaded lower endo'f an upper tuberence character c.

ing section designated generally,y by the reflextends upwardly beyond the upper end of thercasing 5, through the well casing C to the surface orto the top of the oil well. Y

Y within theupper end ofthe easinigfp is pern The lowerportion of the casingsee'gionc orated labout itsuperiphery at 28.

Abovethe upper end of the casing 5 thev tubular section b is externally'v threaded as at 24Yfor threaded engagement with theV internally threaded neck 25 formedon the upper rreduced end 26 of a coupling member 27 disposed .circumjacent the tubing section Z; and

having its lower edge inabutting relation with the upper edge of the casing 5. l n

A suitable annular coupling member 27 is internally threaded, Jfor threaded engagement with saidmeniber 26aid casing 5v at the abutting ends of said member 26 casing 5 as shown to advantage in Figure la, 'f

An elongated pipe or tubing 28 extends through the upper tubing secton c andhas its lowerior inner end tapered as at 29"-for con- The tubing section a formably fitting within the tapered bore 30 l of a coupling ring 31 which ceu'pling ring Slis externally threaded for threaded engagementv with the internal threads formed inthe llower end of said casing section c as at 32. (See Figurela.)

The coupling ring 31 thus provides a fluid tight joint between the adjacent end oic the tube v28 and casing section c within the en-rof an upper piston 36, which piston: 36 is alsov adapted for reciprocatory movement within the lower tubing sectionv a or workingy cylinl der as herein before referred to.y for controb;

lingdi'ametrically opposite ports '3T and 38 respectively, inthe pipe or tube section above theports 33 and 34, it being also noted that the port 38 is disposed on a plane above` f the port 37, and that consequently all the ports, 33,3437 and 38ers thus arranged in alternate relation on diametrically opposite sides of the casingl a. i

Eachof the pistons 35 provided with packing rings 39, there being preferably two packing rings fer each piston.V vThe lower piston 35 is provided with tap` ered lower end/portion 40 to facilitafgc the seating of the lower piston 35 on the valve seat 14, so that it vwill be noted the piston 35 also acts asia-,valve for controlling the intake passage 0r VVbore 13 which extends through 1the member 11 and its cylindrical extension 12 toconstitute'an intake passage communi-A catingwith the lower Atube section a.

It is also to be noted that the box 9 and memberll'cooperate to provide a bottom or lower end closure for, the passage41` between the spaced casing 5,and thetube sections and b ,for a purpose to be presently made l manifest. i 1, y. y 'A relatively short connecting rod 42 has andV 36 'arev suitably its lower'rend threaded in a suitable socket i formed in the top ofthe lowermost piston 35,

the upper, end of the rod 42 being threaded within a'socket opening inwardly from the bottom ofthe upper piston 36 as shown to advantage in Figure 1?). A'

An elongated piston rod 43 hasits lower end threaded withiny a complementarily threaded, socket' opening inwardly froml the top 'of the upper most piston 36, andhis piston rod 43 extends upwardly'through a central openingy provided therefor in the disc `orwasher,18,vthe upper end ofthe piston rod extending upwardly through the tube section b.

Mounted on the upper end of the piston rod 43 is a perforated washer 44 and a nut 45 is threadedon the up er end ofthe piston rod 43 for retaining t e washer 44 thereon. A coil spring 46 is concoluted about the upper end of the pistonrod 43, one end of said coil spring 36 resting upon the washer 18, and the upper end of the coil spring im- Y pinging against the washer 44 for normally urging the piston upwardly of the tubing section a above the ports 33,v 34, 37 and 38.

The operation of the device may be briefly set forth as follows Assuming that the fluid, for instance oil, rises naturally upwardly into the lower ends of the casing section a and the casing 5 passing into the chamber 41 of the casing 5 through the ports 33, 34, 37 and 38 which are uncovered as the pistons 35 and 36 are in raised position under the influence of the expansion spring 46. Pressure is forced through pipe 28 to pass through the tubing sections a and I) for acting upon the pistons' 36 and 35 for urging the pistons downwardly against the action of the spring 46 to seat the lower piston 35 upon its seat 14, rand the` continued application of pressure after the seat-ing operation will cause said pressure to pass through the ports 37 and 38 and force the column of liquid, which has' previously risen under natural pressure into the casing 5 upwardly.

The continued application of pressure will continue to lift the fluid upwardly through the chamber 41 of the casing 5. The lifted fluid then passes inwardly through the ports 23 into the chamber 48 of the casing section e, around the pipe 28. It will-be noted by passing the. liquid inwardly into a. pipe c of smaller diameter that the frictional surface engagement for the liquid will be reduced, thereby reducing the amount of power necessary for the fluid lifting operation. Upon relief of pressure the expansion spring 46 will unseat the piston 35 and move the pistons upwardly to a position where the ports 33, 34, 37 and 38 will be uncovered. It will be noted that when the pistons are in upper position, all the ports arev uncovered thereby allowing a rapid filling of the chamber 41 of the casing 5, preliminary to the next application of pressure. The above operation continues for the pumping operation, and the fluid may be discharged from theupper end of the device and conveyed to any suitable place of storage.

It is thought from the foreging description, taken in connection with the accompanying drawings, a clear understanding of the operation, construction, utility and advantages of a device of this character will be had by those skilled in this art without a more detailed description thereof.

Even though I have herein shown and described the preferred embodiment of my invention, it is to be understood that the same is susceptible to changes fully comprehended byy the spirit of the invention as herein described and claimed, and the scope ofthe appended claims. l

The invention having been set forth what is claimed as new and useful is 1. vIn a device for forcing free rising Huid froma well, inner and outer spaced tubular members, means of communication between the tubular members, a member threaded in thelower end of the inner tubular member andl having a bore therethrough providing an intake passage for said inner tubular member and throughwhich thefree rising fluid rises and a. normally open spring controlled spaced apart pair of' sealing members adapted to be downwardly moved under pressure in the inner tubular `member one of which constitutes means for controlling said intake passage, said fluid being pressure lifted inmembers, a member threaded in the lower end of the innertubular member and having a bore therethrough providing an intake passage for said inner tubular` member, and spring opened spaced apart pressure actuated members adapted for reciprocatory movement within said inner tubular member, one of which reciprocating vmembers constitutes means for controlling the rise of fluid lthrough said intake passage interiorly of said tubular member rwhen moved in one direction and said inner tubular member at" the lower end thereof being provided with ports controlled by said pressure actuated member, whereby` fluid from the well may ber .trapped in the space between said inner and outer tubular member and the pressure uti'- lized for seating the spring actuated spaced apart member utilized for lifting fluid .in said space as long as continuous pressure is applied.

3. In a device of the class described for lifting free rising fluid from a well, inner and outer spaced tubular members, af member threaded in the lower end ofv thevinner tubular member and having a bore therethrough providing an intake passage for said inner tubular member, and spring controlled spaced apart pressure actuated members adapted for reciprocatory movement within said inner tubular member, one of which constitutes means for controlling said intake passage for closing off the flow of fluid into the casing when pressure is applied in the inner casing, ports of commimication betweeny said casings and through which free rising fluid passes to the chamber of the outer casing, the pressure utilized for'actuvating said pressure actuatedmembers being by-passe-d when said members are seated through the ports offcommunication and utilized for lifting the fluid therein.

4. In a device for forcing free rising iuid by pressure from a well, inner and outer spaced tubular members, means forvclosing the upper endof 'the outer tubular member, means yfor closing the lower end Lof said outer tubular.membe'r, a member threaded in `the `lower end .of the vinnertubular member and having a bore therethrough provid` ing an intake Ypassage for said inner tubular member, and spring controlled spaced apart pressure actuated members adapted for .reciprocatory movement within said inner tuf bular member and toprovide sealing means between the well and inner tubular member when pressure is applied, ports ofcommunication between the chambersof the casings through which fluid flowswhen the spaced members are in raised position, saidV spaced members when in lowered position uncover,- ing the ports and allowing the pressure to be by-passed into the chamber of the outer casing for lifting'the fluid therein, saidinner tubular member comprising a plurality of open ended sections coupled-in 'end -to endV relation and the upper most of said sections havinga perforated Vlower end portion, a pressure pipe extendinginto said lastmentioned section and having the wall thereof in spaced relation to Vsaid last mentioned section to provide an oil receiving spaceztherebetween and an annular member threaded within the lower end of said one section for closing the space between said section *andsaid pressure pipe at the bottom of this space. 5. In a` device for forcing free rising fluid from a well, inner and outer spaced'tubular members, means for closing the upper end of the outer tubular member, means for closing the lower end of said outer tubular mem-V ber, a member 'threaded inthe lower end of the inner tubular member and liavinga bore therethrough providing an intake passage -forsaid inner tubular member, and spring trapped in the space between said inner andV outer tubular members, andthe pressure utilized for rlifting said fluid from the casing sections, said inner tubular member comprising a plurality of open ended sections coupledin end to end relation and the upperv y ceiving space therebetween, and an annular member threaded within the lower end of said one section for closing the space between said sec-tion and said pressure pipe at the bottom of the space, said pressure actuated member comprisingl al pair of pistons, and

said last mentioned annular member having a tapered bore, vsaid pressure pipe having ak lowered taperedend fitting conformab-ly within said bore. 'A

and outer spaced tubular members forming therebetween a liquidV passage having coinmunication at the lower end thereof with the inner; tubular member,a pressure pipe contion `of said inner `tubular member and formingrtherebetween a liquid receiving and discharge chamber having communication with -said passage, and fluid pressure controlled means operable in said tubular member for sealing fluid against rising in the tubular .member and diverting the pressure into the chamber ofthe outer, tubular member and subsequently forcing the liquid' upwardly to chamber. Y i l i y 7. In a device of the class described,.inner and outer spaced tubular membersrforming therebetween .a liquidi. passage, a pressure Apipe concentrically arranged within the upper portion of the inner tubular member and forming therebetween a liquid receiving and discharge chamber having communication with said passage, said inner tubular meinber having an intakeVpa-ssagefin the lower end thereof, a valve seat at thev inner end of theintake passage, a pair Aof spaced alined pressure actuated pistons operable within the inner tubularmember, one of said pistons being adapted to rest on the valve seat, said inner tubular member having ports above the-valve seat controllable by said pistons,

Vsaid ports'being arranged in pairs, 'the ports of one pair being normally disposed between said pistons, and the ports of the second pair Anormally above the upper rpiston when the lower piston is at rest on said valve seat.

' In testimony whereof I aii: my signature.

PHILLIP G. SHERRY.

l8.0 6.Y In av device of the class described, inner Y centrically arranged within the upper pore5 to be finally exhausted through the discharge 

